Citrus reticulata Blanco plant named ‘Tamdo No.3’

ABSTRACT

A new and distinct  Citrus Reticulate  Blanco plant named ‘Tamdo No. 3’, characterized by its upright plant type and strong vigor, The plant type of ‘Tamdo No.3’ is upright and the tree vigor is strong, fruit shape is oblate and the fruit shape index is about 143, fruit skin thickness is about 2.7 mm so it is easy skinning, the fruit flesh rate is about 82.9%, sugar of fruit juice is about 13.7° Bx, the acidity is about 0.79%, and the sugar acid ratio is about 17.34.

Latin name of the genus and species of the plant claimed: Citrus reticulata Blanco.

Variety denomination: ‘Tamdo No.3’.

BACKGROUND OF THE INVENTION

The new and distinct cultivar is a product of a breeding program conducted in a nursery in Korea and by the inventors by crossing a Japanese variety ‘Kiyomi’ (not patented, as the seed parent) and an American variety ‘Sunburst’ mandarin (not patented, as the pollen parent). The seeds obtained by the cross were sowed in the next spring. The plants started fruiting in 2010. In 2011, the first screening was carried out, and the one called Jegamna-27 was selected. In the last screening which was carried out in 2012, Jegamna-27 was selected as a new variety and named ‘Tamdo No.3’.

After hybridization of the parents, the variety was planted by asexual propagation by grafting in Korea for three generations and there was no genetic variation, therefore its traits are stable.

The fruit characteristics of ‘Tamdo No.3’ are in the Table 1 below. The test carried out from 2010 to 2012, in Citrus Research Station.

Survey Fruit Fruit Thickness date weight Flesh shape of the skin (yyyy.mm.dd) (g) rate (%) index (mm) 2010.1.6 254.2 85.9 155 1.7 2010.3.22 173.9 77.9 3.0 2011.1.5 189.8 85.1 157 1.5 2011.1.20 213.8 82.3 155 2.1 2011.2.7 200.8 81.9 149 2.7 2011.2.21 171.6 82.7 152 2.3 2011.3.8 232.6 78.5 152 2.8 2011.3.29 262.2 81.4 158 2.4 2012.2.6 290.8 84.6 149 2.3 2012.2.20 280.0 82.9 143 2.7 2012.3.13 284.6 82.6 141 2.2 Survey Seed date grain Sugar Acidity Sugar (yyyy.mm.dd) number (° Bx) (%) acid ratio 2010.1.6 0.0 10.8 0.82 13.19 2010.3.22 2.4 11.8 1.22 9.66 2011.1.5 0.6 12.9 1.28 10.13 2011.1.20 0.0 12.7 1.28 10.46 2011.2.7 0.0 14.0 1.09 13.02 2011.2.21 0.0 14.4 1.31 11.20 2011.3.8 0.0 14.7 1.06 13.85 2011.3.29 0.0 13.5 0.85 16.05 2012.2.6 0.0 12.9 0.88 14.69 2012.2.20 0.0 13.7 0.79 17.34 2012.3.13 0.0 13.8 0.82 16.77 Fruit shape index = The transverse diameter ÷ The longitudinal diameter × 100

SUMMARY OF THE INVENTION

The cultivar ‘Tamdo No. 3’ has not been observed under every possible environmental conditions. Therefore, there may be variations in the phenotype due to varying environmental conditions such as temperature, day length and light intensity. However, the genotype will not vary.

The following traits have been repeatedly observed and are determined to be the characteristics of the new cultivar of Citrus reticulata Blanco. These attributes in combination distinguish ‘Tamdo No. 3’ as unique from all other varieties of Citrus reticulata Blanco known to the inventors.

-   -   1. The plant type of ‘Tamdo No.3’ is upright and the tree vigor         is strong.     -   2. The fruit color is orange.     -   3. Germination stage of ‘Tamdo No.3’ is in the middle of April,         and the blooming stage is in late May.     -   4. Fruits start coloring in late October and finish coloring in         early December.     -   5. The mature stage is in the middle of February.     -   6. Fruit shape is oblate and the fruit shape index is about 143.     -   7. Fruit skin thickness is about 2.7 mm so it is easy skinning.     -   8. The fruit flesh rate is about 82.9%.     -   9. Sugar of fruit juice is about 13.7° Bx, the acidity is about         0.79%, and the sugar acid ratio is about 17.34.

Plants of the new cultivar ‘Tamdo No. 3’ are similar to plants of the seed parent ‘Kiyomi’ in most horticultural characteristics, however, the plants of the new cultivar ‘Tamdo No. 3’ produce tree vigor that are stronger than the parent. Compared to the parent, ‘Tamdo No. 3’ produces fruit with skin thickness of about 2.7 mm. The fruit surface of the new cultivar is smooth, whereas the ‘Kiyomi’ cultivar has a rough fruit surface.

The new cultivar differs from the closest comparable plants and characteristics of the new cultivar as shown in the tables below:

TABLE 2 Denomi- The expression nation Characteristic of the characteristic of similar in which the similar Kiyomi Tamdo No. 3 variety variety is different Variety Variety Kiyomi plant: type medium upright Tree vigor medium strong Fruit: shape index 119 (round) 143 (oblate) Fruit: flesh rate 74.6% 82.9% Fruit: skin thickness 4.9 mm 2.7 mm Fruit: skin surface rough smooth Fruit juice: Sugar (° Bx) 9.7 13.7 Fruit juice: Acidity (%) 1.17 0.79 Fruit: sugar acid ratio 8.29 17.34 Fruit: color yellowish medium orange orange Mature stage early (in the very early (in middle of the middle of March) February)

TABLE 3 Thickness Fruit Fruit of the Seed weight Flesh shape skin grain Variety (g) rate (%) index (mm) number Tamdo 213.8 82.3 155 2.1 0.0 No.3 Kiyomi 214.0 74.4 107 4.1 0.0 T-Test NS * * * (0.05) Tamdo 232.6 78.5 152 2.8 0.0 No.3 Kiyomi 209.9 70.5 118 4.8 0.0 T-Test NS * * * (0.05) Tamdo 280.0 82.9 143 2.7 0.0 No.3 Kiyomi 318.7 74.6 119 4.9 0.0 T-Test NS * * * (0.05) Degree Sugar of Survey Sugar Acidity acid color date Variety (° Bx) (%) ratio (a*) (yyyy.mm.dd) Tamdo 12.7 1.28 10.46 30.8 2011.1.20 No.3 Kiyomi 10.1 1.75  5.99 18.7 2011.1.20 T-Test * NS * * (0.05) Tamdo 14.7 1.06 13.85 33.6 2011.3.8 No.3 Kiyomi 10.3 1.55  6.68 22.6 2011.3.9 T-Test * * * * (0.05) Tamdo 13.7 0.79 17.34 31.1 2012.2.20 No.3 Kiyomi  9.7 1.17  8.29 18.7 2012.2.20 T-Test * * * * (0.05)

TABLE 4 Charac- Forms of Expression NO teristics 1 2 3 4 5  1 Chromo- 2 3 4 some multiple  2 Plant: upright medium Type  3 Plant: no or medium density of sparse spines  4 leaf: color light green green  5 leaf: length very short medium short  6 leaf: width very narrow medium narrow  7 leaf: length/ small medium width ratio  8 Leaf petiole: very short medium length short  9 Flower: small medium calyx diameter 10 Flower: very short medium petal length short 11 Flower: very narrow medium petal width narrow 12 Flower: small medium petal length/ width ratio 13 Flower: very short medium stamen short length 14 Flower: white light anther color NN155A yellow 15 Flower: absent activity pollen 16 Fruit: length very short medium short 17 Fruit: width very nanow medium narrow 18 Fruit: small medium length/width ratio 19 Fruit: neck absent 20 Fruit: areola absent 21 Fruit: green yellowish light medium yellowish surface green yellow yellow orange color (26B) 22 Fruit: smooth surface roughness 23 Fruit: fresh with light light medium light color white green yellow yellow orange (24A) 24 Fruit: skin thin medium thickness 25 Fruit: skin weak medium strength 26 Fruit juice: low medium total soluble solids 27 Fruit juice: low medium acid 28 Mature very early medium stage early 29 Partheno- absent carpy 30 Self- absent incompat- ibility 31 Tree vigor weak medium Application variety: Similar Tamdo variety: Forms of Expression No. 3 Kiyomi NO 6 7 8 9 No Data No Data  1 2 2  2 pen- 1 5 dulous  3 densely 1 1  4 dark 9 9 green (137A)  5 long very 5 10.3 cm 7 12.7 cm long  6 broad very 5  4.8 cm 7  5.8 cm broad  7 large 5 2.2 5 2.2  8 long very 3 14.9 5 21.7 long mm mm  9 large 5 5 10 long very 5 18.2 5 16.1 long mm mm 11 broad very 5  8.9 5  7.7 broad mm mm 12 large 5 2.0  5 2.1  13 long very 5 5 long 14 medium 1 1 yellow 15 present 1 1 16 long very 5 59.7 7 73.5 long mm mm 17 large very 7 89.4 7 84.3 large mm mm 18 large 5 0.67 9 0.87 19 present 9 1 20 present 1 1 21 medium dark red red 6 31.8(a) 5 20.0(a) orange orange with (30D) orange 22 rough 1 9 23 medium dark red purple 6 4 orange orang (25A) 24 thick 5  2.7 9  4.9 mm mm 25 strong 5 9 26 high 9 13.7° 5 9.7° Bx Bx 27 high 1 5 28 late very 1 3 late 29 present 9 9 30 present 9 9 31 strong 9 5

Table 5 illustrates the comparison of the claimed plant with that of the pollen parent ‘Sunburst’ and a related know variety ‘Kanpei’.

TABLE 5 Characteristic(s) in Describe the Describe the Describe the which the expression expression expression candidate of the of the of the variety differs characteristic(s) characteristic(s) characteristic(s) from the for the candidate for the similar for the similar similar variety variety variety variety(ies) ‘Tamdo No. 3’ ‘Sunburst’ ‘kanpei’ Plant: Type upright upright spreading Flower: activity absent present absent pollen Fruit: width 89.4 mm 66.5 mm 73.0 mm Fruit: neck present absent absent Fruit: presence of absent or very always present absent or very navel rare rare Fruit juice: total 13.7° Bx 11.4° Bx 11.1° Bx soluble solids Fruit juice: acid 0.79% 0.84% 1.11% Fruit: number of 0 10 0 seeds Mature stage Mid-late(mid- Early(Mid- Middle(mid- February) november) January) Parthenocarpy presen absent present Self- present present present incompatibility Tree vigor strong strong middle

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying colored photographs illustrate the overall appearance and distinct characteristics of the new Citrus reticulate Blanco ‘Tamdo No. 3’ showing colors as true as is reasonably possible with colored reproduction of this type. The age of the plant in the photos are approximately 9 years. These photos were taken in 2012, in Korea. Colors in the photographs may differ slightly from the color values cited in the detained botanical description which accurately describes the color of the ‘Tamdo No. 3’.

The chart used in the identification of colors described herein is The R.H.S. Colour Chart of The Royal Horticultural Society, 2007, Fifth edition, except where general color terms of ordinary significance are used.

FIG. 1 provides multiple views of typical fruits harvested from the cultivar ‘Tamdo No. 3’. Top, bottom and side views of the whole, unpeeled fruit are shown as well as two cross-sectional views of the inside of the fruit.

FIG. 2 illustrates in full color typical foliage and fruits of ‘Tamdo No. 3’ on the tree.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of the new cultivar ‘Tamdo No. 3’ plants as grown in Korea. The descriptions were taken from 2010 to 2012.

-   Botanical classification: Citrus reticulate Blanco ‘Tamdo No. 3’. -   Propagation: ‘Tamdo No. 3’ is typically grafted onto rootstock of     ‘Jegamna-27’. -   Plant:     -   -   Age of the plant described.—Approximately 3 years.         -   Chromosome multiples.—2.         -   Plant type.—Upright.         -   Plant tree vigor.—Strong.         -   Plant density of spines.—None or sparse. -   Foliage:     -   -   Leaf color.—Dark green (R.H.S. Green 137A).         -   Leaf length.—About 10.3 cm.         -   Leaf width.—About 4.8 cm.         -   Leaf length/width ratio.—About 2.2.         -   Leaf petiole length.—About 14.9 mm.         -   Leaf shape.—Ovate.         -   Margin of leaf.—Absent or weak.         -   Apex of leaf.—Acute. -   Flower:     -   -   Flower calyx diameter.—About 3.2 mm.         -   Flower petal length.—About 18.2 mm.         -   Flower petal width.—About 8.9 mm.         -   Flower petal length/width ratio.—About 2.0.         -   Flower stamen length.—About 7.7 mm.         -   Flower anther color.—White (R.H.S. White NN155A).         -   Flower activity pollen.—Absent. -   Fruit:     -   -   Fruit length.—About 59.7 mm.         -   Fruit width.—About 89.4 mm.         -   Fruit length/width ratio.—About 0.67.         -   Fruit neck.—Present.         -   Fruit areola.—Absent.         -   Fruit surface color.—Medium orange (R.H.S. Orange 30D).         -   Fruit surface roughness.—Smooth.         -   Fruit fresh color.—Medium orange (R.H.S. Orange 25A).         -   Fruit skin thickness.—About 2.7 mm.         -   Fruit skin strength.—Medium.         -   Fruit flesh rate.—About 82.9%.         -   Fruit sugar acid ratio.—About 17.34.         -   Fruit juice.—Total soluble solids: about 13.7° Bx.         -   Fruit juice acidity.—About 0.79%.         -   Mature stage.—Very early.         -   Parthenocarpy.—Present.         -   Self-incompatibility.—Present.         -   Tree vigor.—Strong.         -   Position of the broadest part of the fruit.—At middle.         -   Shape of the fruit.—Oblate.         -   Width of the fruit neck.—About 16.2 mm.         -   Length of the fruit neck.—About 6.5 mm.         -   The presence of depression at distal end of the             fruit.—Absent.         -   The glossiness of the fruit surface.—Moderate.         -   The adherence to the flesh of the fruit rind.—Weak.         -   The presence of the navel of fruit.—Absent.         -   The time of maturity of fruit for consumption.—Mid-late             (mid-February).         -   The polyembryony of the seed.—Absent.         -   Seed.—Absent.         -   Other fruit features.—For the very early mature stage,             ‘Tamdo No.3’ should be protected cultured. Pruning on ‘Tamdo             No.3’ is as the same as other variety which belongs to             Citrus reticulata Blanco. 

What is claimed is:
 1. A new and distinct cultivar of Citrus reticulate Blanco plant named ‘Tamdo No. 3’ as herein illustrated and described. 